66486 has 16 divisors (see below), whose sum is σ = 152064. Its totient is φ = 18984.

The previous prime is 66467. The next prime is 66491. The reversal of 66486 is 68466.

It is a happy number.

It is a d-powerful number, because it can be written as 6 + 6³ + 4⁸ + 8³ + 6³ .

It is a congruent number.

It is an unprimeable number.

66486 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750 + ... + 833.

It is an arithmetic number, because the mean of its divisors is an integer number (9504).

2⁶⁶⁴⁸⁶ is an apocalyptic number.

66486 is an abundant number, since it is smaller than the sum of its proper divisors (85578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76032).

66486 is a wasteful number, since it uses less digits than its factorization.

66486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595.

The product of its digits is 6912, while the sum is 30.

The square root of 66486 is about 257.8487929000. The cubic root of 66486 is about 40.5113517943.

The spelling of 66486 in words is "sixty-six thousand, four hundred eighty-six".